CN201581394U - Large pile toe grout-injection precast pile - Google Patents
Large pile toe grout-injection precast pile Download PDFInfo
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- CN201581394U CN201581394U CN2009202568447U CN200920256844U CN201581394U CN 201581394 U CN201581394 U CN 201581394U CN 2009202568447 U CN2009202568447 U CN 2009202568447U CN 200920256844 U CN200920256844 U CN 200920256844U CN 201581394 U CN201581394 U CN 201581394U
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- toe
- pile body
- injection
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Abstract
The utility model relates to a precast pile, in particular to a large pile toe grout-injection precast pile belonging to the technical field of pile foundation engineering. The large pile toe grout-injection precast pile comprises a pile body, wherein a grout injection pipe is arranged in the pile body, the lower end of the pile body is provided with a pile toe, and a grout outlet perpendicular to the pile body is arranged on the connecting part between the pile toe and the pile body and communicated with the grout injection pipe. The large pile toe grout-injection precast pile has the advantages of simple structure and convenient use, and the pile toe and the high-pressure jetting grout injection act jointly, thereby effectively reducing the difficulty in driving and pressing the piles and lowering the pile pressing force; and besides, compared with the existing precast pile, the bearing capacity of the precast pile is nearly increased by two times, thereby greatly reducing the difficulty in construction, shortening the construction time and achieving the effects of improving the engineering quality and reducing the engineering cost.
Description
Technical field
The utility model relates to a kind of preformed pile, and especially a kind of timber pile point slip casting preformed pile belongs to the pile foundation engineering technique field.
Background technology
In building operations, the preformed pile that widely-used steel concrete is made is squeezed into (static pressure) ground, usually need utilize specific device to carry out pile sinking, piling processing before this, often have pile sinking, the appearance of piling situation of difficult owing to the soil body is inhomogeneous in a lot of areas, sometimes in addition can can't reach the degree of depth of design, so not only influenced the quality of engineering, pile body also damages easily, has caused certain waste.
The utility model content
The purpose of this utility model is: the defective at above-mentioned prior art exists, a kind of piling difficulty that reduced is proposed, and reduce pile driving pressure, and can improve the timber pile point slip casting preformed pile of preformed pile bearing capacity effectively.
In order to reach above purpose, timber pile point slip casting preformed pile of the present utility model, comprise pile body, be provided with Grouting Pipe in the described pile body, it is characterized in that: the lower end of described pile body is provided with the stake point, described stake point is provided with the slurry outlet vertical with pile body with the junction of pile body, and described slurry outlet is communicated with Grouting Pipe.
Further improvement of the utility model is that described stake point is a cone, and the upper section of described cone is greater than the cross section of pile body.
Of the present utility model further the improvement again is that the lower end of described pile body is provided with reinforcing bar, and described reinforcing bar matches with the preformed hole that is positioned at the cone upper end.
The beneficial effects of the utility model are: timber pile point slip casting preformed pile of the present utility model is simple in structure, easy to use, stake point and the acting in conjunction of high-pressure injection cement injection have reduced effectively and have suppressed a difficulty, have reduced pile driving pressure, compare with existing preformed pile in addition, the bearing capacity of this preformed pile is increased to about 2 times, greatly reduces difficulty of construction, has shortened the engineering time, reach the raising workmanship, reduce the effect of construction costs.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the sectional view of the utility model pile body.
Fig. 3 is the structural representation of the utility model stake point.
Fig. 4 is the lateral view of Fig. 3.
Fig. 5 is the utility model working state figure.
Fig. 6 is the state diagram that preformed pile of the present utility model forms enlarged footing.
The specific embodiment
Embodiment one
The timber pile point slip casting preformed pile of present embodiment, as shown in Figures 1 to 4, comprise pile body 3, pre-buried Grouting Pipe 2 in the pile body 3, the lower end of pile body 3 is provided with stake point 4, stake point 4 is provided with the space with the junction of pile body 3, the space forms slurry outlet 5, and slurry outlet 5 is perpendicular with pile body 3, and slurry outlet 5 is stopped up by soil when having avoided suppressing, guarantee that slurries flow out smoothly, slurry outlet 5 is connected with Grouting Pipe 2; Stake point 4 is a cone, and the upper section of its king-pile point 4 is greater than the cross section of pile body 3; Pile body 3 be a separate type with stake point 4, and the lower end of pile body 3 is provided with reinforcing bar 7, and upper end and the reinforcing bar 7 corresponding positions of stake point 4 are provided with preformed hole 6, and reinforcing bar 7 inserts in the preformed holes 6 pile body 3 is connected as one with sharp 4 when suppressing.
When practice of construction, stake point 4 is introduced into soil compaction in the ground, and pile body 3 enters the soil body subsequently, because the cross section of the section ratio pile body 3 of stake point 4 is big, form the space between the pile body 3 and the soil body when suppressing, thereby reduced the frictional force between the pile body 3 and the soil body, and then reduced piling, pile driving pressure; After suppressing one section degree of depth of stake, inject the high pressure slurries by the stake top Grouting Pipe 1 that is positioned on the pile body 3 to preformed pile, slurries enter the soil body by Grouting Pipe 2 and slurry outlet 5, around preformed pile, form cement paste thin layer 8 (see figure 5)s, cement paste thin layer 8 pairs of piling, pilings play lubrication, have reduced the difficulty of piling, piling; After cement paste solidifies simultaneously, solidify the pile body soil body on every side, increased the sectional area of pile body, improved pile side resistance; Pile body is suppressed to projected depth, continues slip casting is carried out at the stake tip, and the soil body that slurries solidify around the stake point 4 has formed the enlarged footing (see figure 6).In work progress, play (pressure) stake and hocket with slip casting, stop after promptly every dozen (pressure) one section degree of depth, carry out slip casting.
In addition to the implementation, the utility model can also have other embodiments, and for example the cross section of pile body can be for circular or square; For another example, the material of preformed pile can be steel concrete or steel.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (3)
1. a timber pile point slip casting preformed pile comprises pile body, is provided with Grouting Pipe in the described pile body, and it is characterized in that: the lower end of described pile body is provided with the stake point, and described stake point is provided with the slurry outlet vertical with pile body with the junction of pile body, and described slurry outlet is communicated with Grouting Pipe.
2. timber pile point slip casting preformed pile according to claim 1, it is characterized in that: described stake point is cone, and the upper section of described cone is greater than the cross section of pile body.
3. timber pile point slip casting preformed pile according to claim 2, it is characterized in that: the lower end of described pile body is provided with reinforcing bar, and described reinforcing bar matches with the preformed hole that is positioned at the cone upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202568447U CN201581394U (en) | 2009-11-03 | 2009-11-03 | Large pile toe grout-injection precast pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202568447U CN201581394U (en) | 2009-11-03 | 2009-11-03 | Large pile toe grout-injection precast pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201581394U true CN201581394U (en) | 2010-09-15 |
Family
ID=42723391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202568447U Expired - Fee Related CN201581394U (en) | 2009-11-03 | 2009-11-03 | Large pile toe grout-injection precast pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201581394U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603345A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Cement mixing grouting pile foundations and forming method |
| CN103603336A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Grouting precast pile and grouting method |
| CN105464105A (en) * | 2015-12-31 | 2016-04-06 | 石家庄铁道大学 | Pile forming structure and method of zero-friction pile |
| CN107190768A (en) * | 2017-06-06 | 2017-09-22 | 西安科技大学 | A kind of static pressure pile structure and its construction method for building strengthening of foundation |
| CN110387868A (en) * | 2019-08-02 | 2019-10-29 | 沙焕焕 | A kind of pre- sedimentation method for processing foundation |
| CN112982426A (en) * | 2021-02-07 | 2021-06-18 | 中铁广州工程局集团深圳工程有限公司 | Construction method of underground assembly type station precast pile |
-
2009
- 2009-11-03 CN CN2009202568447U patent/CN201581394U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603345A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Cement mixing grouting pile foundations and forming method |
| CN103603336A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Grouting precast pile and grouting method |
| CN103603345B (en) * | 2013-10-31 | 2017-01-11 | 周兆弟 | Cement mixing grouting pile foundations and forming method |
| CN103603336B (en) * | 2013-10-31 | 2017-01-11 | 周兆弟 | Grouting precast pile and grouting method |
| CN105464105A (en) * | 2015-12-31 | 2016-04-06 | 石家庄铁道大学 | Pile forming structure and method of zero-friction pile |
| CN105464105B (en) * | 2015-12-31 | 2017-06-06 | 石家庄铁道大学 | One kind is without friction pile pile making method |
| CN107190768A (en) * | 2017-06-06 | 2017-09-22 | 西安科技大学 | A kind of static pressure pile structure and its construction method for building strengthening of foundation |
| CN107190768B (en) * | 2017-06-06 | 2022-09-13 | 西安科技大学 | Construction method of static pressure pile structure for building foundation reinforcement |
| CN110387868A (en) * | 2019-08-02 | 2019-10-29 | 沙焕焕 | A kind of pre- sedimentation method for processing foundation |
| CN112982426A (en) * | 2021-02-07 | 2021-06-18 | 中铁广州工程局集团深圳工程有限公司 | Construction method of underground assembly type station precast pile |
| CN112982426B (en) * | 2021-02-07 | 2022-09-16 | 中铁广州工程局集团深圳工程有限公司 | Construction method of underground assembly type station precast pile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20121103 |